Designed to work with AVC-enabled RC vehicles the Spektrum DX4C is a practical and reliable transmitter. The new Spektrum DX4C surface radio is a great choice for Active Vehicle Control (AVC)-equipped RC vehicles. This programmable 2.4GHz radio comes with a Spektrum SRS4210 AVC receiver and is a great step-up from the Spektrum DX2L or DX3C radio. The included receiver offers the range and signal security of a 4-channel DSMR receiver with AVC Technology in a single compact waterproof unit. As you drive AVC can calculate your vehicle's attitude multiple times per second and make instantaneous corrections to the steering and throttle. This allows you to stay precisely on the trajectory you require. You can adjust the steering and throttle stability with the transmitter to suit your skill level and driving skill. You will find that AVC feels completely natural with no lag in response or limits on your control. Complete with an affordable price the Spektrum DX4C is an excellent package for drivers.